ABAP Select data from SAP table E1AFVOL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP E1AFVOL table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to E1AFVOL. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the E1AFVOL table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_E1AFVOL TYPE STANDARD TABLE OF E1AFVOL,
      WA_E1AFVOL TYPE E1AFVOL,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <E1AFVOL> TYPE E1AFVOL.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_E1AFVOL.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM E1AFVOL
  INTO TABLE IT_E1AFVOL.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM E1AFVOL
*  INTO TABLE @DATA(IT_E1AFVOL2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_E1AFVOL INDEX 1 INTO DATA(WA_E1AFVOL2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_E1AFVOL ASSIGNING <E1AFVOL>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<E1AFVOL>-VORNR = 1.
<E1AFVOL>-PVZNR = 1.
<E1AFVOL>-ABLIPKZ = 1.
<E1AFVOL>-ABRUE = 1.
<E1AFVOL>-ANZZL = 1.

ENDLOOP.

LOOP AT IT_E1AFVOL INTO WA_E1AFVOL.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_E1AFVOL-ARBEH, sy-vline,
  WA_E1AFVOL-ARBEI, sy-vline,
  WA_E1AFVOL-ARBID, sy-vline,
  WA_E1AFVOL-ARUZE, sy-vline,
  WA_E1AFVOL-AUFAK, sy-vline,
  WA_E1AFVOL-BEARZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_E1AFVOL you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_E1AFVOL TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_E1AFVOL INTO WA_E1AFVOL.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E1AFVOL-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1AFVOL-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field PVZNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_E1AFVOL-PVZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_E1AFVOL-PVZNR.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_E1AFVOL_STR, 
VORNR TYPE STRING,
PVZNR TYPE STRING,
ABLIPKZ TYPE STRING,
ABRUE TYPE STRING,
ANZZL TYPE STRING,
ARBEH TYPE STRING,
ARBEI TYPE STRING,
ARBID TYPE STRING,
ARUZE TYPE STRING,
AUFAK TYPE STRING,
BEARZ TYPE STRING,
BEAZE TYPE STRING,
BMSCH TYPE STRING,
CY_SEQNRV TYPE STRING,
DAUNE TYPE STRING,
DAUNO TYPE STRING,
DAUME TYPE STRING,
DAUMI TYPE STRING,
FLIES TYPE STRING,
FSAVD TYPE STRING,
FSAVZ TYPE STRING,
FSEDD TYPE STRING,
FSEDZ TYPE STRING,
FSELD TYPE STRING,
FSELZ TYPE STRING,
FSEVD TYPE STRING,
FSEVZ TYPE STRING,
FSSAD TYPE STRING,
FSSAZ TYPE STRING,
FSSBD TYPE STRING,
FSSBZ TYPE STRING,
FSSLD TYPE STRING,
FSSLZ TYPE STRING,
KALID TYPE STRING,
LAR01 TYPE STRING,
LAR02 TYPE STRING,
LAR03 TYPE STRING,
LAR04 TYPE STRING,
LAR05 TYPE STRING,
LAR06 TYPE STRING,
LIEGZ TYPE STRING,
LIGZE TYPE STRING,
LMNGA TYPE STRING,
LTXA1 TYPE STRING,
MEINH TYPE STRING,
MINWE TYPE STRING,
MGVRG TYPE STRING,
PEINH TYPE STRING,
PREIS TYPE STRING,
PRZNT TYPE STRING,
RASCH TYPE STRING,
RFGRP TYPE STRING,
RFSCH TYPE STRING,
RMNGA TYPE STRING,
RSTZE TYPE STRING,
RUEST TYPE STRING,
SPLIM TYPE STRING,
SPMUS TYPE STRING,
SSAVD TYPE STRING,
SSAVZ TYPE STRING,
SSEDD TYPE STRING,
SSEDZ TYPE STRING,
SSELD TYPE STRING,
SSELZ TYPE STRING,
SSEVD TYPE STRING,
SSEVZ TYPE STRING,
SSSAD TYPE STRING,
SSSAZ TYPE STRING,
SSSBD TYPE STRING,
SSSBZ TYPE STRING,
SSSLD TYPE STRING,
SSSLZ TYPE STRING,
STEUS TYPE STRING,
TRANZ TYPE STRING,
TRAZE TYPE STRING,
UEKAN TYPE STRING,
UEMUS TYPE STRING,
USR04 TYPE STRING,
USR05 TYPE STRING,
USE04 TYPE STRING,
USE05 TYPE STRING,
VGE01 TYPE STRING,
VGE02 TYPE STRING,
VGE03 TYPE STRING,
VGE04 TYPE STRING,
VGE05 TYPE STRING,
VGE06 TYPE STRING,
VGW01 TYPE STRING,
VGW02 TYPE STRING,
VGW03 TYPE STRING,
VGW04 TYPE STRING,
VGW05 TYPE STRING,
VGW06 TYPE STRING,
VGWTS TYPE STRING,
WAERS TYPE STRING,
WARTZ TYPE STRING,
WRTZE TYPE STRING,
XDISP TYPE STRING,
XMNGA TYPE STRING,
ZEILP TYPE STRING,
ZEIMB TYPE STRING,
ZEIMU TYPE STRING,
ZEITN TYPE STRING,
ZEIWM TYPE STRING,
ZEIWN TYPE STRING,
ZLPRO TYPE STRING,
ZMINB TYPE STRING,
ZMINU TYPE STRING,
ZTMIN TYPE STRING,
ZWMIN TYPE STRING,
ZWNOR TYPE STRING,
ISAVD TYPE STRING,
IEAVD TYPE STRING,
ISDD TYPE STRING,
ISDZ TYPE STRING,
IEDD TYPE STRING,
IEDZ TYPE STRING,
ANZMA TYPE STRING,
QUALF TYPE STRING,
LOART TYPE STRING,
LOGRP TYPE STRING,
SAMPLE_SIZE TYPE STRING,
INSPLOT_BASE_UOM TYPE STRING,
ARBPL TYPE STRING,
ME_OPERATION_ID TYPE STRING,
ME_REVISION TYPE STRING,
RUEK TYPE STRING,
ME_RESOURCE_TYPE TYPE STRING,
SAMPLE_SIZE_ALL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_E1AFVOL_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_E1AFVOL_STR-VORNR sy-vline 
WA_E1AFVOL_STR-PVZNR sy-vline 
WA_E1AFVOL_STR-ABLIPKZ sy-vline 
WA_E1AFVOL_STR-ABRUE sy-vline 
WA_E1AFVOL_STR-ANZZL sy-vline 
WA_E1AFVOL_STR-ARBEH sy-vline 
WA_E1AFVOL_STR-ARBEI sy-vline 
WA_E1AFVOL_STR-ARBID sy-vline 
WA_E1AFVOL_STR-ARUZE sy-vline 
WA_E1AFVOL_STR-AUFAK sy-vline 
WA_E1AFVOL_STR-BEARZ sy-vline 
WA_E1AFVOL_STR-BEAZE sy-vline 
WA_E1AFVOL_STR-BMSCH sy-vline 
WA_E1AFVOL_STR-CY_SEQNRV sy-vline 
WA_E1AFVOL_STR-DAUNE sy-vline 
WA_E1AFVOL_STR-DAUNO sy-vline 
WA_E1AFVOL_STR-DAUME sy-vline 
WA_E1AFVOL_STR-DAUMI sy-vline 
WA_E1AFVOL_STR-FLIES sy-vline 
WA_E1AFVOL_STR-FSAVD sy-vline 
WA_E1AFVOL_STR-FSAVZ sy-vline 
WA_E1AFVOL_STR-FSEDD sy-vline 
WA_E1AFVOL_STR-FSEDZ sy-vline 
WA_E1AFVOL_STR-FSELD sy-vline 
WA_E1AFVOL_STR-FSELZ sy-vline 
WA_E1AFVOL_STR-FSEVD sy-vline 
WA_E1AFVOL_STR-FSEVZ sy-vline 
WA_E1AFVOL_STR-FSSAD sy-vline 
WA_E1AFVOL_STR-FSSAZ sy-vline 
WA_E1AFVOL_STR-FSSBD sy-vline 
WA_E1AFVOL_STR-FSSBZ sy-vline 
WA_E1AFVOL_STR-FSSLD sy-vline 
WA_E1AFVOL_STR-FSSLZ sy-vline 
WA_E1AFVOL_STR-KALID sy-vline 
WA_E1AFVOL_STR-LAR01 sy-vline 
WA_E1AFVOL_STR-LAR02 sy-vline 
WA_E1AFVOL_STR-LAR03 sy-vline 
WA_E1AFVOL_STR-LAR04 sy-vline 
WA_E1AFVOL_STR-LAR05 sy-vline 
WA_E1AFVOL_STR-LAR06 sy-vline 
WA_E1AFVOL_STR-LIEGZ sy-vline 
WA_E1AFVOL_STR-LIGZE sy-vline 
WA_E1AFVOL_STR-LMNGA sy-vline 
WA_E1AFVOL_STR-LTXA1 sy-vline 
WA_E1AFVOL_STR-MEINH sy-vline 
WA_E1AFVOL_STR-MINWE sy-vline 
WA_E1AFVOL_STR-MGVRG sy-vline 
WA_E1AFVOL_STR-PEINH sy-vline 
WA_E1AFVOL_STR-PREIS sy-vline 
WA_E1AFVOL_STR-PRZNT sy-vline 
WA_E1AFVOL_STR-RASCH sy-vline 
WA_E1AFVOL_STR-RFGRP sy-vline 
WA_E1AFVOL_STR-RFSCH sy-vline 
WA_E1AFVOL_STR-RMNGA sy-vline 
WA_E1AFVOL_STR-RSTZE sy-vline 
WA_E1AFVOL_STR-RUEST sy-vline 
WA_E1AFVOL_STR-SPLIM sy-vline 
WA_E1AFVOL_STR-SPMUS sy-vline 
WA_E1AFVOL_STR-SSAVD sy-vline 
WA_E1AFVOL_STR-SSAVZ sy-vline 
WA_E1AFVOL_STR-SSEDD sy-vline 
WA_E1AFVOL_STR-SSEDZ sy-vline 
WA_E1AFVOL_STR-SSELD sy-vline 
WA_E1AFVOL_STR-SSELZ sy-vline 
WA_E1AFVOL_STR-SSEVD sy-vline 
WA_E1AFVOL_STR-SSEVZ sy-vline 
WA_E1AFVOL_STR-SSSAD sy-vline 
WA_E1AFVOL_STR-SSSAZ sy-vline 
WA_E1AFVOL_STR-SSSBD sy-vline 
WA_E1AFVOL_STR-SSSBZ sy-vline 
WA_E1AFVOL_STR-SSSLD sy-vline 
WA_E1AFVOL_STR-SSSLZ sy-vline 
WA_E1AFVOL_STR-STEUS sy-vline 
WA_E1AFVOL_STR-TRANZ sy-vline 
WA_E1AFVOL_STR-TRAZE sy-vline 
WA_E1AFVOL_STR-UEKAN sy-vline 
WA_E1AFVOL_STR-UEMUS sy-vline 
WA_E1AFVOL_STR-USR04 sy-vline 
WA_E1AFVOL_STR-USR05 sy-vline 
WA_E1AFVOL_STR-USE04 sy-vline 
WA_E1AFVOL_STR-USE05 sy-vline 
WA_E1AFVOL_STR-VGE01 sy-vline 
WA_E1AFVOL_STR-VGE02 sy-vline 
WA_E1AFVOL_STR-VGE03 sy-vline 
WA_E1AFVOL_STR-VGE04 sy-vline 
WA_E1AFVOL_STR-VGE05 sy-vline 
WA_E1AFVOL_STR-VGE06 sy-vline 
WA_E1AFVOL_STR-VGW01 sy-vline 
WA_E1AFVOL_STR-VGW02 sy-vline 
WA_E1AFVOL_STR-VGW03 sy-vline 
WA_E1AFVOL_STR-VGW04 sy-vline 
WA_E1AFVOL_STR-VGW05 sy-vline 
WA_E1AFVOL_STR-VGW06 sy-vline 
WA_E1AFVOL_STR-VGWTS sy-vline 
WA_E1AFVOL_STR-WAERS sy-vline 
WA_E1AFVOL_STR-WARTZ sy-vline 
WA_E1AFVOL_STR-WRTZE sy-vline 
WA_E1AFVOL_STR-XDISP sy-vline 
WA_E1AFVOL_STR-XMNGA sy-vline 
WA_E1AFVOL_STR-ZEILP sy-vline 
WA_E1AFVOL_STR-ZEIMB sy-vline 
WA_E1AFVOL_STR-ZEIMU sy-vline 
WA_E1AFVOL_STR-ZEITN sy-vline 
WA_E1AFVOL_STR-ZEIWM sy-vline 
WA_E1AFVOL_STR-ZEIWN sy-vline 
WA_E1AFVOL_STR-ZLPRO sy-vline 
WA_E1AFVOL_STR-ZMINB sy-vline 
WA_E1AFVOL_STR-ZMINU sy-vline 
WA_E1AFVOL_STR-ZTMIN sy-vline 
WA_E1AFVOL_STR-ZWMIN sy-vline 
WA_E1AFVOL_STR-ZWNOR sy-vline 
WA_E1AFVOL_STR-ISAVD sy-vline 
WA_E1AFVOL_STR-IEAVD sy-vline 
WA_E1AFVOL_STR-ISDD sy-vline 
WA_E1AFVOL_STR-ISDZ sy-vline 
WA_E1AFVOL_STR-IEDD sy-vline 
WA_E1AFVOL_STR-IEDZ sy-vline 
WA_E1AFVOL_STR-ANZMA sy-vline 
WA_E1AFVOL_STR-QUALF sy-vline 
WA_E1AFVOL_STR-LOART sy-vline 
WA_E1AFVOL_STR-LOGRP sy-vline 
WA_E1AFVOL_STR-SAMPLE_SIZE sy-vline 
WA_E1AFVOL_STR-INSPLOT_BASE_UOM sy-vline 
WA_E1AFVOL_STR-ARBPL sy-vline 
WA_E1AFVOL_STR-ME_OPERATION_ID sy-vline 
WA_E1AFVOL_STR-ME_REVISION sy-vline 
WA_E1AFVOL_STR-RUEK sy-vline 
WA_E1AFVOL_STR-ME_RESOURCE_TYPE sy-vline 
WA_E1AFVOL_STR-SAMPLE_SIZE_ALL sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.